This article presents a proposal for development of adidactic strand for demonstration of the Seebeck, Peltiereffects and for testing to obtain performance curves of themodules and thermoelectric materials having the propertywhen subjected to a potential difference to generate atemperature gradient between its faces (Peltier) andsubjected to a temperature gradient, generating a potentialdifference between their terminals (Seebeck). The workbenchproposal is composed of a thermal system that has... Topics: Didatic Workbench, Thermoelectric, Peltier Effect, Seebeck Effect, Learning.
byHorvath, Thomas J.; Berry, Scott A.; Hamilton, H. Harri
An experimental investigation was conducted on a 5-degree-half-angle cone with a flare in a conventional Mach 6 wind tunnel to examine the effect of facility noise on boundary layer transition. The effect of tunnel noise was inferred by comparing transition onset locations determined from the present test to that previously obtained in a Mach 6 quiet tunnel. Together, the two sets of experiments are believed to represent the first direct comparison of transition onset between a conventional and... Topics: CRYSTAL GROWTH, CONCAVITY, LIQUID-SOLID INTERFACES, TEMPERATURE GRADIENTS, SPACE SHUTTLES, BISMUTH,...
NASA uses Radioisotope Power Systems, or RPS, to convert heat from radioactive decay to electricity, creating predictable, continuous power for long missions in extreme environments. But learn how a next generation Radioisotope Stirling Engine will perform four times more efficiently and help NASA use even less of a precious resource. Topic: NASA, NIA, eClips, Launchpad, High School, Video, Education, Mathematics, Technology, Science,...